static void PutTAMn (const InsDesc* Ins);
/* Emit a TAMn instruction (HuC6280). Since this is a two byte instruction with
- * implicit addressing mode, the opcode byte in the table is actually the
- * second operand byte. The TAM instruction is the more generic form, it takes
- * an immediate argument.
- */
+** implicit addressing mode, the opcode byte in the table is actually the
+** second operand byte. The TAM instruction is the more generic form, it takes
+** an immediate argument.
+*/
static void PutTMA (const InsDesc* Ins);
/* Emit a TMA instruction (HuC6280) with an immediate argument. Only one bit
- * in the argument byte may be set.
- */
+** in the argument byte may be set.
+*/
static void PutTMAn (const InsDesc* Ins);
/* Emit a TMAn instruction (HuC6280). Since this is a two byte instruction with
- * implicit addressing mode, the opcode byte in the table is actually the
- * second operand byte. The TAM instruction is the more generic form, it takes
- * an immediate argument.
- */
+** implicit addressing mode, the opcode byte in the table is actually the
+** second operand byte. The TAM instruction is the more generic form, it takes
+** an immediate argument.
+*/
static void PutTST (const InsDesc* Ins);
/* Emit a TST instruction (HuC6280). */
static void PutJMP (const InsDesc* Ins);
/* Handle the jump instruction for the 6502. Problem is that these chips have
- * a bug: If the address crosses a page, the upper byte gets not corrected and
- * the instruction will fail. The PutJmp function will add a linker assertion
- * to check for this case and is otherwise identical to PutAll.
- */
+** a bug: If the address crosses a page, the upper byte gets not corrected and
+** the instruction will fail. The PutJmp function will add a linker assertion
+** to check for this case and is otherwise identical to PutAll.
+*/
static void PutRTS (const InsDesc* Ins attribute ((unused)));
/* Handle the RTS instruction for the 816. In smart mode emit a RTL opcode if
- * the enclosing scope is FAR.
- */
+** the enclosing scope is FAR.
+*/
static void PutAll (const InsDesc* Ins);
/* Handle all other instructions */
/* Instruction table for the 6502 with illegal instructions */
static const struct {
unsigned Count;
- InsDesc Ins[70];
+ InsDesc Ins[75];
} InsTab6502X = {
sizeof (InsTab6502X.Ins) / sizeof (InsTab6502X.Ins[0]),
{
{ "ALR", 0x0800000, 0x4B, 0, PutAll }, /* X */
{ "ANC", 0x0800000, 0x0B, 0, PutAll }, /* X */
{ "AND", 0x080A26C, 0x20, 0, PutAll },
+ { "ANE", 0x0800000, 0x8B, 0, PutAll }, /* X */
{ "ARR", 0x0800000, 0x6B, 0, PutAll }, /* X */
{ "ASL", 0x000006e, 0x02, 1, PutAll },
{ "AXS", 0x0800000, 0xCB, 0, PutAll }, /* X */
{ "JMP", 0x0000808, 0x4c, 6, PutJMP },
{ "JSR", 0x0000008, 0x20, 7, PutAll },
{ "LAS", 0x0000200, 0xBB, 0, PutAll }, /* X */
- { "LAX", 0x000A30C, 0xA3, 1, PutAll }, /* X */
+ { "LAX", 0x080A30C, 0xA3, 11, PutAll }, /* X */
{ "LDA", 0x080A26C, 0xa0, 0, PutAll },
{ "LDX", 0x080030C, 0xa2, 1, PutAll },
{ "LDY", 0x080006C, 0xa0, 1, PutAll },
{ "LSR", 0x000006F, 0x42, 1, PutAll },
- { "NOP", 0x0000001, 0xea, 0, PutAll },
+ { "NOP", 0x080006D, 0x00, 10, PutAll }, /* X */
{ "ORA", 0x080A26C, 0x00, 0, PutAll },
{ "PHA", 0x0000001, 0x48, 0, PutAll },
{ "PHP", 0x0000001, 0x08, 0, PutAll },
{ "SEC", 0x0000001, 0x38, 0, PutAll },
{ "SED", 0x0000001, 0xf8, 0, PutAll },
{ "SEI", 0x0000001, 0x78, 0, PutAll },
+ { "SHA", 0x0002200, 0x93, 1, PutAll }, /* X */
+ { "SHX", 0x0000200, 0x9e, 1, PutAll }, /* X */
+ { "SHY", 0x0000040, 0x9c, 1, PutAll }, /* X */
{ "SLO", 0x000A26C, 0x03, 0, PutAll }, /* X */
{ "SRE", 0x000A26C, 0x43, 0, PutAll }, /* X */
{ "STA", 0x000A26C, 0x80, 0, PutAll },
{ "STX", 0x000010c, 0x82, 1, PutAll },
{ "STY", 0x000002c, 0x80, 1, PutAll },
+ { "TAS", 0x0000200, 0x9b, 0, PutAll }, /* X */
{ "TAX", 0x0000001, 0xaa, 0, PutAll },
{ "TAY", 0x0000001, 0xa8, 0, PutAll },
{ "TSX", 0x0000001, 0xba, 0, PutAll },
}
};
-#ifdef SUNPLUS
-/* Table for the SUNPLUS CPU */
-#include "sunplus.inc"
-#endif
-
/* Instruction table for the SWEET16 pseudo CPU */
static const struct {
unsigned Count;
{ "ROR", 0x000006F, 0x62, 1, PutAll },
{ "RTI", 0x0000001, 0x40, 0, PutAll },
{ "RTS", 0x0000001, 0x60, 0, PutAll },
- { "SBC", 0x080A66C, 0xe0, 0, PutAll },
{ "SAX", 0x0000001, 0x22, 0, PutAll },
{ "SAY", 0x0000001, 0x42, 0, PutAll },
+ { "SBC", 0x080A66C, 0xe0, 0, PutAll },
{ "SEC", 0x0000001, 0x38, 0, PutAll },
{ "SED", 0x0000001, 0xf8, 0, PutAll },
{ "SEI", 0x0000001, 0x78, 0, PutAll },
(const InsTable*) &InsTab65SC02,
(const InsTable*) &InsTab65C02,
(const InsTable*) &InsTab65816,
-#ifdef SUNPLUS
- (const InsTable*) &InsTabSunPlus,
-#else
- 0,
-#endif
(const InsTable*) &InsTabSweet16,
(const InsTable*) &InsTabHuC6280,
0, /* Mitsubishi 740 */
const InsTable* InsTab = (const InsTable*) &InsTab6502;
/* Table to build the effective 65xx opcode from a base opcode and an
- * addressing mode.
- */
-static unsigned char EATab[10][AM65I_COUNT] = {
+** addressing mode. (The value in the table is ORed with the base opcode)
+*/
+static unsigned char EATab[12][AM65I_COUNT] = {
{ /* Table 0 */
0x00, 0x00, 0x05, 0x0D, 0x0F, 0x15, 0x1D, 0x1F,
0x00, 0x19, 0x12, 0x00, 0x07, 0x11, 0x17, 0x01,
},
{ /* Table 6 */
0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x30, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x90
},
{ /* Table 7 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00
},
+ { /* Table 10 (NOPs) */
+ 0xea, 0x00, 0x04, 0x0c, 0x00, 0x14, 0x1c, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+ 0x00, 0x00, 0x00
+ },
+ { /* Table 11 (LAX) */
+ 0x08, 0x08, 0x04, 0x0C, 0x00, 0x14, 0x1C, 0x00,
+ 0x14, 0x1C, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
+ 0x00, 0x00, 0x80
+ },
};
/* Table to build the effective SWEET16 opcode from a base opcode and an
- * addressing mode.
- */
+** addressing mode.
+*/
static unsigned char Sweet16EATab[2][AMSW16I_COUNT] = {
{ /* Table 0 */
0x00, 0x00, 0x00, 0x00, 0x00,
static int EvalEA (const InsDesc* Ins, EffAddr* A)
/* Evaluate the effective address. All fields in A will be valid after calling
- * this function. The function returns true on success and false on errors.
- */
+** this function. The function returns true on success and false on errors.
+*/
{
/* Get the set of possible addressing modes */
GetEA (A);
/* From the possible addressing modes, remove the ones that are invalid
- * for this instruction or CPU.
- */
+ ** for this instruction or CPU.
+ */
A->AddrModeSet &= Ins->AddrMode;
/* If we have an expression, check it and remove any addressing modes that
- * are too small for the expression size. Since we have to study the
- * expression anyway, do also replace it by a simpler one if possible.
- */
+ ** are too small for the expression size. Since we have to study the
+ ** expression anyway, do also replace it by a simpler one if possible.
+ */
if (A->Expr) {
ExprDesc ED;
ED_Init (&ED);
if (ED.AddrSize == ADDR_SIZE_DEFAULT) {
/* We don't know how big the expression is. If the instruction
- * allows just one addressing mode, assume this as address size
- * for the expression. Otherwise assume the default address size
- * for data.
- */
+ ** allows just one addressing mode, assume this as address size
+ ** for the expression. Otherwise assume the default address size
+ ** for data.
+ */
if ((A->AddrModeSet & ~AM65_ALL_ZP) == 0) {
ED.AddrSize = ADDR_SIZE_ZP;
} else if ((A->AddrModeSet & ~AM65_ALL_ABS) == 0) {
} else {
ED.AddrSize = DataAddrSize;
/* If the default address size of the data segment is unequal
- * to zero page addressing, but zero page addressing is
- * allowed by the instruction, mark all symbols in the
- * expression tree. This mark will be checked at end of
- * assembly, and a warning is issued, if a zero page symbol
- * was guessed wrong here.
- */
+ ** to zero page addressing, but zero page addressing is
+ ** allowed by the instruction, mark all symbols in the
+ ** expression tree. This mark will be checked at end of
+ ** assembly, and a warning is issued, if a zero page symbol
+ ** was guessed wrong here.
+ */
if (ED.AddrSize > ADDR_SIZE_ZP && (A->AddrModeSet & AM65_SET_ZP)) {
ExprGuessedAddrSize (A->Expr, ADDR_SIZE_ZP);
}
A->AddrModeBit = (0x01UL << A->AddrMode);
/* If the instruction has a one byte operand and immediate addressing is
- * allowed but not used, check for an operand expression in the form
- * <label or >label, where label is a far or absolute label. If found,
- * emit a warning. This warning protects against a typo, where the '#'
- * for the immediate operand is omitted.
- */
+ ** allowed but not used, check for an operand expression in the form
+ ** <label or >label, where label is a far or absolute label. If found,
+ ** emit a warning. This warning protects against a typo, where the '#'
+ ** for the immediate operand is omitted.
+ */
if (A->Expr && (Ins->AddrMode & AM65_ALL_IMM) &&
(A->AddrModeSet & (AM65_DIR | AM65_ABS | AM65_ABS_LONG)) &&
ExtBytes[A->AddrMode] == 1) {
A->Opcode = Ins->BaseCode | EATab[Ins->ExtCode][A->AddrMode];
/* If feature force_range is active, and we have immediate addressing mode,
- * limit the expression to the maximum possible value.
- */
+ ** limit the expression to the maximum possible value.
+ */
if (A->AddrMode == AM65I_IMM_ACCU || A->AddrMode == AM65I_IMM_INDEX ||
A->AddrMode == AM65I_IMM_IMPLICIT) {
if (ForceRange && A->Expr) {
case 2:
if (CPU == CPU_65816 && (A->AddrModeBit & (AM65_ABS | AM65_ABS_X | AM65_ABS_Y))) {
/* This is a 16 bit mode that uses an address. If in 65816,
- * mode, force this address into 16 bit range to allow
- * addressing inside a 64K segment.
- */
+ ** mode, force this address into 16 bit range to allow
+ ** addressing inside a 64K segment.
+ */
Emit2 (A->Opcode, GenWordExpr (A->Expr));
} else {
Emit2 (A->Opcode, A->Expr);
static long PutImmed8 (const InsDesc* Ins)
/* Parse and emit an immediate 8 bit instruction. Return the value of the
- * operand if it's available and const.
- */
+** operand if it's available and const.
+*/
{
EffAddr A;
long Val = -1;
static void PutTAMn (const InsDesc* Ins)
/* Emit a TAMn instruction (HuC6280). Since this is a two byte instruction with
- * implicit addressing mode, the opcode byte in the table is actually the
- * second operand byte. The TAM instruction is the more generic form, it takes
- * an immediate argument.
- */
+** implicit addressing mode, the opcode byte in the table is actually the
+** second operand byte. The TAM instruction is the more generic form, it takes
+** an immediate argument.
+*/
{
/* Emit the TAM opcode itself */
Emit0 (0x53);
static void PutTMA (const InsDesc* Ins)
/* Emit a TMA instruction (HuC6280) with an immediate argument. Only one bit
- * in the argument byte may be set.
- */
+** in the argument byte may be set.
+*/
{
/* Use the generic handler */
long Val = PutImmed8 (Ins);
static void PutTMAn (const InsDesc* Ins)
/* Emit a TMAn instruction (HuC6280). Since this is a two byte instruction with
- * implicit addressing mode, the opcode byte in the table is actually the
- * second operand byte. The TAM instruction is the more generic form, it takes
- * an immediate argument.
- */
+** implicit addressing mode, the opcode byte in the table is actually the
+** second operand byte. The TAM instruction is the more generic form, it takes
+** an immediate argument.
+*/
{
/* Emit the TMA opcode itself */
Emit0 (0x43);
static void PutJMP (const InsDesc* Ins)
/* Handle the jump instruction for the 6502. Problem is that these chips have
- * a bug: If the address crosses a page, the upper byte gets not corrected and
- * the instruction will fail. The PutJmp function will add a linker assertion
- * to check for this case and is otherwise identical to PutAll.
- */
+** a bug: If the address crosses a page, the upper byte gets not corrected and
+** the instruction will fail. The PutJmp function will add a linker assertion
+** to check for this case and is otherwise identical to PutAll.
+*/
{
EffAddr A;
if (A.AddrModeBit & AM65_ABS_IND) {
/* Compare the low byte of the expression to 0xFF to check for
- * a page cross. Be sure to use a copy of the expression otherwise
- * things will go weird later.
- */
+ ** a page cross. Be sure to use a copy of the expression otherwise
+ ** things will go weird later.
+ */
ExprNode* E = GenNE (GenByteExpr (CloneExpr (A.Expr)), 0xFF);
/* Generate the message */
static void PutRTS (const InsDesc* Ins attribute ((unused)))
/* Handle the RTS instruction for the 816. In smart mode emit a RTL opcode if
- * the enclosing scope is FAR.
- */
+** the enclosing scope is FAR.
+*/
{
if (SmartMode && CurrentScope->AddrSize == ADDR_SIZE_FAR) {
Emit0 (0x6B); /* RTL */
GetSweet16EA (&A);
/* From the possible addressing modes, remove the ones that are invalid
- * for this instruction or CPU.
- */
+ ** for this instruction or CPU.
+ */
A.AddrModeSet &= Ins->AddrMode;
/* Check if we have any adressing modes left */
int FindInstruction (const StrBuf* Ident)
/* Check if Ident is a valid mnemonic. If so, return the index in the
- * instruction table. If not, return -1.
- */
+** instruction table. If not, return -1.
+*/
{
unsigned I;
const InsDesc* ID;
char Key[sizeof (ID->Mnemonic)];
/* Shortcut for the "none" CPU: If there are no instructions to search
- * for, bail out early.
- */
+ ** for, bail out early.
+ */
if (InsTab->Count == 0) {
/* Not found */
return -1;
I = 0;
while (I < SB_GetLen (Ident)) {
/* If the identifier is longer than the longest mnemonic, it cannot
- * be one.
- */
+ ** be one.
+ */
if (I >= sizeof (Key) - 1) {
/* Not found, no need for further action */
return -1;
/* Call the handler */
InsTab->Ins[Index].Emit (&InsTab->Ins[Index]);
}
-
-
-
projects / cc65 / blobdiff